<template>
  <div>
      <!-- 面包屑导航区域 -->
      <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card class="box-card">
        <!-- 搜索与添加区域 -->
        <el-row :gutter="100">
            <el-col :span="7">
              <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                 <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
              </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
            </el-col>
        </el-row>

        <!-- 用户列表区域 -->
        <el-table stripe border :data="userlist" style="width: 100%">
            <!-- 索引列 -->
            <el-table-column type="index" label="#"></el-table-column>
            <!-- 用户数据列 -->
            <el-table-column label="姓名" prop="username"></el-table-column>
            <el-table-column label="邮箱" prop="email"></el-table-column>
            <el-table-column label="电话" prop="mobile"></el-table-column>
            <el-table-column label="角色" prop="role_name"></el-table-column>
            <el-table-column label="状态">
                <!-- 设置插槽 -->
                <template  slot-scope="scope">
                    <!-- {{scope.row}} 拿到这一行的数据 -->
                    <el-switch @change="userStateChanged(scope.row)" v-model="scope.row.mg_state" active-color="#13ce66" inactive-color="#ff4949">
                        
                    </el-switch>
                </template>
            </el-table-column>
            <el-table-column label="操作" width="180px">
                <template slot-scope="scope">
                    <!-- 修改按钮 -->
                     <el-tooltip effect="dark" content="修改" placement="top" :enterable="false">
                        <el-button @click="showEditDialog(scope.row.id)" type="primary" icon="el-icon-edit" size="mini"></el-button>
                    </el-tooltip>
                    <!-- 删除按钮 -->
                    <el-tooltip effect="dark" content="删除" placement="top" :enterable="false">
                        <el-button @click="removeUserById(scope.row.id)" type="danger" icon="el-icon-delete" size="mini"></el-button>
                    </el-tooltip>
                    <!-- 分配角色按钮 -->
                    <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                        <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                    </el-tooltip>
                </template>
            </el-table-column>
        </el-table>
        <!-- 分页区域 -->
        <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize"
                 layout="total, sizes, prev, pager, next, jumper" :total="total">
        </el-pagination>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
        <!-- 内容主体区域 -->
        <el-form ref="addFormRef" :rules="addFormRules" :model="addForm" label-width="80px">
            <el-form-item label="用户名" prop="username">
                <el-input v-model="addForm.username"></el-input>
            </el-form-item>
            <el-form-item label="密码" prop="password">
                <el-input v-model="addForm.password"></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
                <el-input v-model="addForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
                <el-input v-model="addForm.mobile"></el-input>
            </el-form-item>
        </el-form>
        <!-- 底部按钮区域 -->
        <span slot="footer" class="dialog-footer">
            <el-button @click="addDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
        <el-form ref="editFormRef" :rules="editFormRules" :model="editForm" label-width="80px">
            <el-form-item label="用户名">
                <el-input v-model="editForm.username" disabled></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
                <el-input v-model="editForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
                <el-input v-model="editForm.mobile"></el-input>
            </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
    </el-dialog>

    <!-- 分配角色的对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
        <div>
            <p>当前的用户: {{userInfo.username}}</p>
            <p>当前的角色: {{userInfo.role_name}}</p>
            <p>分配角色: 
                <el-select v-model="selectedRoleId" placeholder="请选择">
                <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
                </el-option>
            </el-select>
            </p>
            
        </div>
        <span slot="footer" class="dialog-footer">
            <el-button @click="setRoleDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
    name:'Users',
    data(){
        //验证邮箱的规则
        var checkEmail = (rule, value, callback) => {
         //验证邮箱的正则表达式
        const regEmail = /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
        if(regEmail.test(value)){
            //验证通过  合法邮箱
            return callback();
        }else{
            //验证不通过
            callback(new Error('请输入合法的邮箱!'));
        }
      };

      //验证手机号码的规则
        var checkMobile = (rule, value, callback) => {
       //验证手机号的正则表达式
       const regMobile =/^(?:(?:\+|00)86)?1(?:(?:3[\d])|(?:4[5-79])|(?:5[0-35-9])|(?:6[5-7])|(?:7[0-8])|(?:8[\d])|(?:9[189]))\d{8}$/
        if (regMobile.test(value)) {
            //验证通过  合法手机号
            return callback();
        }else{
            //验证不通过
            callback(new Error('请输入合法的手机号!'));
        }
      };

        return{
            //获取用户列表的参数对象
            queryInfo:{
                query:'',
                //当前的页数
                pagenum: 1,
                //当前每页显示多少条数据
                pagesize: 2,
            },

            //用户数据
            userlist:[],
            total: 0,
            //控制添加用户对话框的显示与隐藏
            addDialogVisible: false,
            //添加用户的表单数据        
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:'',
            },

            //添加表单的验证规则对象
            addFormRules:{
                username:[
                    {required: true, message:'请输入用户名',trigger:'blur'},
                    {min: 3, max: 10, message:'用户名的长度在3~10个字符之间',trigger:'blur'}
                ],
                password:[
                    {required: true, message:'请输入密码',trigger:'blur'},
                    {min: 6, max: 16, message:'用户名的长度在6~16个字符之间',trigger:'blur'}
                ],
                email:[
                    {required: true, message:'请输入邮箱',trigger:'blur'},
                    {validator: checkEmail, trigger:'blur'}
                    
                ],
                mobile:[
                    {required: true, message:'请输入手机号码',trigger:'blur'},
                    {validator: checkMobile, trigger:'blur'}
                ],

            },

            //控制修改用户对话框的显示和隐藏
            editDialogVisible: false,

            // 查询到的用户信息对象
            editForm:{},

            //手机和邮箱的验证规则对象
            editFormRules:{
                email:[
                    {required: true, message:'请输入邮箱',trigger:'blur'},
                    {validator: checkEmail, trigger:'blur'}
                    
                ],
                mobile:[
                    {required: true, message:'请输入手机号码',trigger:'blur'},
                    {validator: checkMobile, trigger:'blur'}
                ],
            },

            //控制分配角色对话框的显示与隐藏
            setRoleDialogVisible: false,

            //需要被分配角色的用户信息
            userInfo:{},
            //所有角色的数据列表
            rolesList:[],
            //已选择中的角色Id值
            selectedRoleId:'',
        }    
    },   
    created(){
        this.getUserList();
    },
    methods: {
        async getUserList(){
           const {data: res} = await this.$http.get('users',{params:this.queryInfo});
           console.log(res);
           if(res.meta.status == 200){
               //把查询到的用户数据赋值给userlist
               this.userlist = res.data.users; 
               this.total = res.data.total;
           }else{
               //获取数据失败
               return this.$message.error('获取用户列表失败!');
           }
        },
        /* 监听pagesize 改变的事件 */
        handleSizeChange(newSize){
            console.log(newSize);
            this.queryInfo.pagesize = newSize;
            this.getUserList();
        },
        /* 监听页码值 改变的事件 */
        handleCurrentChange(newPage){
            console.log(newPage);
            this.queryInfo.pagenum = newPage;
            this.getUserList();
        },
        /* 监听 switch 开关状态的改变 */
        async userStateChanged(userInfo){
            console.log(userInfo)
           const {data: res} = await this.$http.put(`users/
           ${userInfo.id}/state/${userInfo.mg_state}`);
           if(res.meta.status == 200){
               this.$message.success('更新用户状态成功!'); 
           }else{
               userInfo.mg_state = !userInfo.mg_state;
               return this.$message.error('更新用户状态失败!');
           }
        },
        /* 监听添加用户对话框的关闭事件 */
        addDialogClosed(){
            this.$refs.addFormRef.resetFields();
        },
        /*点击按钮，添加新用户*/
        addUser(){
            this.$refs.addFormRef.validate(async valid =>{
                if(!valid){
                    return this.$message.error('请输入正确的信息!');
                }
                console.log('@',valid);
                //验证通过 可以发起添加用户的网络请求
                const {data : res} = await this.$http.post('users',this.addForm);
                if(res.meta.status == 201){
                    this.$message.success('添加用户成功!');
                    //隐藏添加用户的对话框
                    this.addDialogVisible = false;
                    //重新获取用户的数据
                    this.getUserList();
                    
                }else{
                    //添加用户数据失败
                    this.$message.error('添加用户失败!');
                    //隐藏添加用户的对话框
                    this.addDialogVisible = false;
                }
            });
        },
        /* 展示编辑用户的对话框 */
        async showEditDialog(id){
            console.log(id);
            const {data: res} = await this.$http.get('users/' + id);
            if(res.meta.status == 200){ 
                //把查询到的用户信息赋值到editForm
                this.editForm = res.data;
            }else{
                return this.$message.error('查询用户信息失败!');
            }
            this.editDialogVisible = true;
        },
         /* 监听修改用户对话框的关闭事件 */
        editDialogClosed(){
            this.$refs.editFormRef.resetFields();
        },
        /* 修改用户信息并提交 */
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid =>{
                if(!valid){
                    //表单验证不通过
                    return this.$message.error('请输入正确的信息!');
                }else{
                    //发起修改用户信息的请求
                    const {data : res} = await this.$http.put('users/' + this.editForm.id,
                        {email: this.editForm.email, mobile: this.editForm.mobile}
                    );
                    if(res.meta.status != 200){
                        return this.$message.error('更新用户信息失败!');
                    }
                    //关闭对话框
                    this.editDialogVisible = false;
                    //刷新数据列表
                    this.getUserList();
                    //提示修改成功
                    this.$message.success('更新用户信息成功！');  
                }
            });
        },
        /* 根据Id值删除对应的用户信息  */
        async removeUserById(id){
            console.log(id);
            //弹框询问用户是否删除数据
            const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(error => {
                return error;         
            });
            //如果用户确认删除，则返回值为字符串 confirm
            //如果用户取消了删除，则返回值为字符串 cancel
            //console.log(confirmResult)
            if(confirmResult !== 'confirm'){
                return this.$message.info('已取消删除!');
            }
            const {data: res} = await this.$http.delete('users/' + id);
            if(res.meta.status !== 200){
                return this.$message.error('删除用户失败！');
            }
            this.$message.success('删除用户成功!');
            //刷新用户列表
            this.getUserList();

            //删除用户操作： 第二种写法
        /* this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
        //发起请求进行删除
        this.$http.delete('users/' + id);
         console.log(data)
         this.$message({
            type: 'success',
            message: '删除用户成功!'
          });
          //刷新用户列表
          this.getUserList();
        }).catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          });          
        }); */
        },
        /* 展示分配角色的对话框 */
        async setRole(userInfo){
            this.userInfo = userInfo
            //在展示对话框之前，获取所有角色的列表
           const {data: res} = await this.$http.get('roles');
           if(res.meta.status !== 200){
               return this.$message.error('获取角色失败!');
           }

            this.rolesList = res.data;

            this.setRoleDialogVisible = true;

        },
        /* 点击按钮，分配角色 */
        async saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择要分配的角色!');
            }
            const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid: this.selectedRoleId});
            if(res.meta.status !== 200){
                return this.$message.error('更新角色失败！');
            }

            this.$message.success('更新角色成功!');
            this.getUserList();
            this.setRoleDialogVisible = false;
        },
        /* 监听分配角色对话框的关闭事件 */
        setRoleDialogClosed(){
            this.selectedRoleId = ''
            this.userInfo = {}
        }           
},
}
</script>

<style scoped>
    .el-table{
        margin-top: 15px;
    }
</style>